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249806

Estimation of the Quality of some Fermented Dairy Products in Cairo and Giza Governorates

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Last updated: 22 Jan 2023

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Abstract

A total of twenty samples of different types of Zabady and Raybe milk were collected from local markets in Cairo and Al-Giza governorates and stored in the refrigerator at5±1°C. Microbiological, physicochemical, and rheological properties of collected samples were studied at the beginning, middle, and end of storage period. The results showed that the average values of acidity, pH, Viscosity, Syneresis, WaterHolding Capacity (WHC%)and Radical Scavenging Activity (RSA%)of fresh samples ranged from 0.72±0.02 to 0.82±0.04%, 4.52±0.05 - 4.61±0.02, 3393±7.00 - 8535±9.00 cP, 2.70±0.04 - 3.88±0.07 (ml/5g), 20.70±0.18 - 45.92±0.19% and 14.69±0.13 - 21.62±0.12%, respectively. The collected fresh samples contained 11.25±0.15 - 14.86±0.19 % total solids. Microbiological analysis revealed that the collected fresh samples contained 7.95 to 8.52 (log cfu/g) lactic acid bacteria, 2.16 to 2.62 (log cfu/g) Coliform Bacteria and 2.25 to 2.33 (log cfu/g) Yeasts and Molds. The hardiness and gumminess of the high-fat traditional zabady samples were higher than the rest of the zabady samples, while the springiness, cohesiveness, and chewiness in the industrial zabady samples were higher than the traditional zabady. As the storage period progressed, chemical, physical, microbiological, and rheological changes occurred.

DOI

10.21608/jfds.2022.138303.1060

Keywords

zabady, Raybe milk, Rheological, R.S.A%

Authors

First Name

M.

Last Name

Mahmoud

MiddleName

A.

Affiliation

Dairy Department, Faculty of Agriculture, Al Azhar University, Cairo, Egypt

Email

halimshafe.5@azahar.edue.eg

City

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Orcid

-

First Name

S.

Last Name

Soliman

MiddleName

A.

Affiliation

Dairy Department, Faculty of Agriculture, Al Azhar University, Cairo, Egypt

Email

-

City

-

Orcid

-

First Name

Sh.

Last Name

Saad

MiddleName

A.

Affiliation

Dairy Department, Faculty of Agriculture, Al Azhar University, Cairo, Egypt

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City

-

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-

Volume

13

Article Issue

7

Related Issue

35714

Issue Date

2022-07-01

Receive Date

2022-07-19

Publish Date

2022-07-01

Page Start

101

Page End

108

Print ISSN

2090-3650

Online ISSN

2090-3731

Link

https://jfds.journals.ekb.eg/article_249806.html

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https://jfds.journals.ekb.eg/service?article_code=249806

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Original Article

Type Code

886

Publication Type

Journal

Publication Title

Journal of Food and Dairy Sciences

Publication Link

https://jfds.journals.ekb.eg/

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Article

Created At

22 Jan 2023